California Department of Fish and Wildlife
Aquatic Biological Assement

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Ephemeroptera Odonata Plecoptera Hemiptera Megaloptera Neuroptera Trichoptera Lepidoptera Coleoptera Diptera Non-Insects




Key Characters Thousands of species; most are < 1 cm in length. Body circular in cross-section. Look like needles pointed on both ends. Preserved specimens sometimes curled up like a curly-Q.
Tolerance 5
Distribution CA, OR, WA, NV, AZ, Baja